Last updated: May 17, 2026
By Home Repair Genie
If your LG refrigerator not cooling but freezer works problem has suddenly appeared, the issue is often caused by blocked airflow, dirty condenser coils, a faulty evaporator fan, or frost buildup around the vents.
The good news is that many homeowners can fix this issue themselves without calling a technician.
Quick Answer
When an LG refrigerator freezer works but the refrigerator section is warm, the issue is usually related to restricted cold air flow from the freezer to the refrigerator compartment. Common fixes include cleaning condenser coils, checking air vents, inspecting the evaporator fan, defrosting ice buildup, and resetting the refrigerator.
Why an LG Refrigerator Not Cooling But Freezer Works Problem Happens
Most LG refrigerators use the freezer section to create cold air for both compartments. A fan pushes cold air from the freezer into the refrigerator compartment.
If airflow becomes blocked or components fail, the freezer may still stay cold while the refrigerator warms up.
Common causes include:
- Blocked air vents
- Frost buildup
- Dirty condenser coils
- Faulty evaporator fan motor
- Damaged thermistor
- Malfunctioning damper control
- Defective control board
Signs of This Problem
You may notice several symptoms before the refrigerator completely stops cooling:
- Food spoiling in the refrigerator section
- Freezer still making ice normally
- Weak airflow from refrigerator vents
- Frost buildup on rear freezer panel
- Refrigerator temperature rising gradually
- Unusual fan noises
If your appliance is also leaking water, you may want to read our guide on How to Fix a Whirlpool Washer F9E1 Error Code for troubleshooting drainage-related appliance issues.
Before You Start
Tools You May Need
- Soft brush
- Vacuum cleaner
- Flashlight
- Screwdriver
- Towels
- Hair dryer (optional)
Safety Tip
Always unplug the refrigerator before inspecting internal components.
Step 1: Check the Refrigerator Air Vents
Why This Helps
Cold air must flow from the freezer into the refrigerator compartment. Blocked vents can prevent proper cooling.
How to Check the Vents
- Open the refrigerator compartment.
- Locate the air vents near the back wall.
- Make sure food containers are not blocking airflow.
- Rearrange items to improve circulation.
Avoid overpacking the refrigerator, especially near the vents.
Step 2: Clean the Condenser Coils
Why Dirty Coils Cause Cooling Problems
Dust-covered condenser coils make it harder for the refrigerator to remove heat.
How to Clean the Coils
- Unplug the refrigerator.
- Locate the condenser coils underneath or behind the unit.
- Use a vacuum or coil brush to remove dust buildup.
- Clean the surrounding floor area.
Dirty condenser coils are a common cause of an LG refrigerator not cooling but freezer works problem.
For additional refrigerator maintenance tips, the experts at LG Support provide appliance troubleshooting and cleaning recommendations.
Step 3: Inspect the Evaporator Fan
Why the Fan Matters
The evaporator fan moves cold air from the freezer into the refrigerator compartment.
How to Inspect the Fan
- Open the freezer door.
- Listen for fan noise while the refrigerator is running.
- Remove the rear freezer panel if necessary.
- Check for ice buildup or damaged fan blades.
If the fan is not spinning properly, it may need replacement.
Step 4: Defrost Ice Buildup
Why Frost Causes Cooling Issues
Heavy frost buildup can block airflow between the freezer and refrigerator sections.
How to Defrost the Refrigerator
- Unplug the refrigerator.
- Remove food from both compartments.
- Leave the doors open for several hours.
- Use towels to absorb melting water.
A hair dryer can speed up the process, but avoid overheating plastic components.
Step 5: Check the Damper Control Assembly
What the Damper Does
The damper controls how much cold air enters the refrigerator compartment.
How to Inspect It
- Locate the air damper inside the refrigerator.
- Listen for it opening and closing.
- Check for ice or obstructions.
- Inspect for broken plastic components.
A stuck damper can prevent cold air from reaching the refrigerator section.
Step 6: Reset the Refrigerator
Why a Reset Can Help
Electronic glitches can sometimes affect cooling performance.
How to Reset an LG Refrigerator
- Unplug the refrigerator.
- Wait about 5 minutes.
- Plug the appliance back in.
- Allow 24 hours for temperatures to stabilize.
If the issue continues after resetting, additional troubleshooting may be required.
If you are troubleshooting other appliance problems, you may also find our guide on LG Washer OE Code Fix helpful.
Step 7: Inspect the Thermistor or Control Board
Why These Parts Matter
The thermistor monitors temperature while the control board manages cooling functions.
Signs of a Failed Component
- Inconsistent temperatures
- Refrigerator constantly running
- No airflow despite fan operation
- Error codes on display panel
These repairs may require advanced appliance troubleshooting or professional service.
How to Prevent LG Refrigerator Cooling Problems
You can help prevent future cooling issues by:
- Cleaning condenser coils every 6 months
- Avoiding blocked vents
- Keeping freezer doors closed tightly
- Checking door seals regularly
- Avoiding overloading the refrigerator
- Maintaining proper temperature settings
Regular maintenance can help prevent an LG refrigerator not cooling but freezer works problem from returning.
When to Call a Professional
Professional appliance repair may be necessary if:
- The refrigerator still will not cool after troubleshooting
- The compressor is not running
- The control board is defective
- Refrigerant issues are suspected
- Electrical components test faulty
Some repairs require specialized tools and refrigerant handling certification.
Frequently Asked Questions
Why is my LG refrigerator warm but freezer cold?
This usually happens because cold air cannot properly move from the freezer into the refrigerator section.
Can dirty condenser coils cause cooling problems?
Yes. Dirty coils reduce cooling efficiency and can cause the refrigerator compartment to warm up.
How long should I unplug my refrigerator to reset it?
Most LG refrigerators should remain unplugged for about 5 minutes before restarting.
Will defrosting fix the problem?
If frost buildup is blocking airflow, a full defrost can sometimes restore proper cooling.
Final Thoughts
In many cases, an LG refrigerator not cooling but freezer works issue can be solved without professional repair by restoring airflow and cleaning key components.
Starting with simple fixes like cleaning coils and checking vents can often solve the problem quickly. If the refrigerator still does not cool properly, more advanced component testing may be necessary.